With the upcoming Monero (XMR) hardfork to the RandomX algo in a day now, we are checking what is the current profitability of crypto coins that are already using the RandomX algorithm or a variant of it on a decent performing AMD CPU that offers great price/performance. For the tests we are using an AMD Ryzen 5 3600 processor that is 6 Core – 12 Threads with a base clock of 3.6 GHz and max boost clock of up to 4.2 GHz running at stock settings on a B450 motherboard with 8GB 3200 MHz DDR4 memory. The hashrates below are from the latest XMRig 5.0.1 and the algorithms tested are RandomARQ (RandomX variant for ArQmA), RandomWOW (RandomX variant for Wownero) and RandomXL (RandomX variant for Loki) and tomorrow we would be able to see profit results from Monero’s new RandomX algorithm after the fork as well…

XMRig 5.0.1 on Ryzen 3600 CPU:
– RandomARQ – 22600 H/s – 29.1963 ARQ – $0.28 USD daily profit
– RandomWOW – 5700 H/s – 91.1030 WOW – $0.28 USD daily profit
– RandomXL – 5900 H/s – 1.2837 LOKI – $0.53 USD daily profit

As you can see even though the performance in terms of H/s is quite good, the profitability of a single Ryzen 3600 CPU is far from great and when you consider that the power usage of a system with that processor is about 130-150W you get let us say 3.6 KW per day with cheap $0.1 USD per KW/h for the electricity that results in $0.36 electricity cost. The only coin and algorithm that is currently above the electricity cost is LOKI and you won’t actually be making much, just paying for the cost of the CPU can take quite some time and here we are all hoping that after the fork of Monero things will be looking better for miners with CPUs. Intel CPU owners might be mostly interested in ArQmA (ARQ) as the variation of the RandomX algorithm it uses performs much better on Intel compared to the version from LOKI or Wownero that are significantly faster on AMD Ryzen.

Monero (XMR) will be hardforking tomorrow, November 30th, at block number 1978433. The fork will change the current CryptoNight R algorithm for mining to the new Random X PoW algorithm, essentially moving the mining of the coin to CPU. There are already a few RandomX miners out there that you can use, links below, and although some f them also support AMD or Nvidia GPUs, you would probably want to stick to CPU mining with RandomX as the algorithm is optimized for processors and GPU mining performance is far to low currently to be considered. Also as already noted AMD’s Ryzen 3000 series of processors is doing great for Random X and performance wise it is much better than recent Intel alternatives.

Another important thing to note regarding the upcoming for is if you are mining directly to an exchange using a paymentID. Since after the fork support for PaymentIDs will be discontinued, in order to continue successfully mining after the network update you need to also update your mining address. Alternatively you can just update to the latest v0.15.0.1 wallet and use a local wallet address for mining after the fork. For an up to date pools for mining XMR you can check the list at MiningPoolStats, they should all be ready for the fork by now.

Mining software with RandomX support:
XMRig 5.0.0
SRBMiner-MULTI 0.1.7
XMR-STAK-RX 1.0.0

The latest GMiner 1.80 miner adds support for the Cortex algorithm used by the Cortex (CTXC) AI on Blockchain crypto project as well as support more Ethash coins along the recently introduced support for Ethereum: Pirl (PIRL), Callisto (CLO), Metaverse (ETP) and Expanse (EXP). Do note that the DevFee on the Cortex algorithm is currently set at 5%, which is higher compared to the regular 2% for the other supported algorithms, though this is to be expected since the official Cortex liner is only for Linux and GMiner seems to be the first with Windows support. When mining Cortex if you get a weird “Write timed out” error you might need to lower the intensity from the default 100 value, use the -i option with a value for each GPU separated by space (single value will be just for the first video card). It also seems that the power usage for the GPU when mining Cortex is lower than the max TDP value at the moment (further optimizations possible?), so the mining video cards are using less power and run cooler.

The GMiner miner software was originally only an Nvidia GPU miner, although some algorithms are already supported on AMD GPUs as well. Do note that GMiner is a closed source miner for Nvidia and AMD GPUs with binaries available for both Windows and Linux, there is a 2% developer fee built-in the software.

To download and try the latest release of the Gminer v1.80 Nvidia and AMD GPU miner…

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